Counting frequencies of array elements means we have to count the number of times an element from the array appears in the given array. We will be discussing five different approaches to achieve this. We can use some inbuilt data structures or external libraries for easy implementation. In this article we are having an array with duplicate elements, our task is to count frequencies of array elements in JavaScript. Users must be familiar with array and it's functions, JavaScript methods and function, loops, conditional statement and Javascript objects. Approaches to Count Array Elements Frequencies Here is a list of ... Read More

Prime numbers are numbers that have exactly two perfect divisors. We will see two methods to find the number of prime numbers in a given range. The first is using the brute force method and by this method time complexity is a bit high. Then we will improve this method and will go for the Sieve of the Eratosthenes algorithm to go with better time complexity. In this article, we are going to find the total number of prime numbers in the given range using the JavaScript programming language. Brute Force Method In this method first, we will learn how ... Read More

In this article, we will go through a JavaScript program to check whether all the rotations of a given number are greater than or equal to the given number or not. We will write an algorithm and explain every step that what we are doing. The time complexity of the code that is going to discuss will be optimistic and space complexity will all be improved from one code to another. Introduction to Problem In the problem, we are given a number and we have to check for each rotation whether they all are greater than the current number or ... Read More

The basic structure of a Linked List in JavaScript can be created using the class in JavaScript and then the movement of the nodes from one position to another can be done for rotation. In this article, we will learn how to rotate a linked list in a clockwise manner in JavaScript programming language. We will see the code for understating the concepts in deep. In the given problem we have given a linked list and we have to rotate it in a clockwise manner. This means, we have to put the last element in first place in every move ... Read More

Snack is an open-source Expo platform where React Native programming is done and the results can be seen instantly. It compiles and builds the bundle for execution on different types of devices or for Android , IOS or web. The code can be saved and shared quickly on Snack. As the user types the code, the library installation links are given by this interface to the user. Snack is a nice and quick to use platform which makes learning of React native easy for beginners. The user doesn't need to install anything. Just SignUp and then login to your expo ... Read More

Memoization is a helper function, or we can say a technique for improving the efficiency of a program by Keeping track of the values that the function has already calculated in the past. In this article, we will discuss the Memoization Helper function with different examples and discuss all the examples in detail so that we can get a better understanding of Memoization. Now let’s discuss the Memoization helper function in the deep in the below section and also see their implementation with an explanation. Introduction to Memoization Helper Function Memoization is a technique of programming that is used to ... Read More

Backbone.js is helping us to organize the JavaScript as it is a compact library. And HTTP is referred to as HyperText Transfer Protocol which helps us to connect the web server over the internet. First, we need to discuss the Backbone.js, HTTP protocol, and HTTP request for a clear understanding of HTTP requests in Backbone.js. In the below section we have discussed all after that we go towards the HTTP Request in Backbone.js with working of the HTTP Request and also examples. And in the end, we conclude the whole article. In this article, we are going to discuss the ... Read More

ES6 is referred to as ECMAScript 6. ES6 is the sixth version of ECMAScript, which was released in 2015 and is sometimes known as ECMAScript 2015. ECMAScript was developed to standardize JavaScript. Further in this article, we are going to discuss Handler Methods in ES6 in detail. Introduction to ES6 As we Know ES6 (ECMAScript 6) is introduced for the standardization of JavaScript. It is a programming language and in ES6 we don't have to need to write a number of lines of code or we can say we have to write less and accomplish more. JavaScript follows the ES6 ... Read More

As we know JavaScript is a lightweight programming language in which generators were introduced in ECMAScript 2015. A generator is a process that has many output values and may be stopped and started. In JavaScript, a generator is made up of a generator function that produces an iterable Generator object. In this article, we are going to discuss the generators in JavaScript and also the different types of generators in JavaScript with syntax and examples in detail. Introduction to Generators in JavaScript The generator's function is as same as the regular function but there is a bit of difference in ... Read More

Debugging is a very hectic process for the developers or the programmer and a minor mistake can lead to major problems like changing a single variable will change the whole code and will become very difficult to detect. Sometimes there are some variables that are not going to change through the code and if by mistake their value got changed or updated by the user then they will not come in first thought that there may be a change in them. To overcome these issues there is a concept defined in the ES6 that if the user knows that a ... Read More